-2x+3(10-x)=21

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Solution for -2x+3(10-x)=21 equation:


Simplifying
-2x + 3(10 + -1x) = 21
-2x + (10 * 3 + -1x * 3) = 21
-2x + (30 + -3x) = 21

Reorder the terms:
30 + -2x + -3x = 21

Combine like terms: -2x + -3x = -5x
30 + -5x = 21

Solving
30 + -5x = 21

Solving for variable 'x'.

Move all terms containing x to the left, all other terms to the right.

Add '-30' to each side of the equation.
30 + -30 + -5x = 21 + -30

Combine like terms: 30 + -30 = 0
0 + -5x = 21 + -30
-5x = 21 + -30

Combine like terms: 21 + -30 = -9
-5x = -9

Divide each side by '-5'.
x = 1.8

Simplifying
x = 1.8

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